It's here! The all-new Shimano Ultegra 6800 cassette has gained an 11th cog, and with this larger 32T big gear you'll be able to climb better than ever before. Oh, and be sure you're rocking a Shimano 11-speed long cage rear derailleur because you'll need that capacity to run this very dynamic cassette. With the same new weight-saving, precision shifting technology as the new Dura-ace 9000, you'll feel a difference all around.

Opens up extra gearing options, especially for tackling upward grades or climbing out of the saddle